A Camden resident accused of killing a Clementon man with a shotgun blast narrowly missed the witness who later identified him, authorities say.

Isaac Bruce faces murder charges for the slaying of 21-year-old Marvin “Gunz” McClinton. The 24-year-old also was arraigned Tuesday on attempted murder and weapons charges.

The Camden County Prosecutor’s Office alleges Bruce killed McClinton around 4:30 a.m. Monday inside a home in the Waterfront South area.

Bruce also allegedly fired two more times at another person in the house on the 1800 block of 6th Street. Those blasts tore holes in the witness’s jacket, hooded sweatshirt and knit hat but caused no injury.

The witness reported being inside the house with McClinton around 1:30 a.m. Monday when Bruce arrived with a woman and a shotgun, according to a court record. The prosecutor’s office noted Bruce “often carried a shotgun,” and the weapon “was not a cause for alarm” for those in the residence.

Later that morning, McClinton and Bruce went upstairs while the witness remained downstairs with the woman. The witness then reported hearing “what sounded like a firecracker,” the court record says.

He heard a blast upstairs and McClinton, struck in the face, “ ‘flew’ down the steps, landing at the bottom,” the record states. Bruce came down the stairs and fired his shotgun at the witness twice, then fled.

Investigators found three shotgun shell casings at the scene, as well as a .380-caliber shell casing from a handgun in the living room. Authorities allege Bruce had a .380-caliber gun when Camden County police detained him shortly after 5 p.m. Monday.

Bruce’s criminal history is “quite extensive,” Assistant Prosecutor Christine Shah said during Tuesday’s hearing in Superior Court in Camden.

She said Bruce was convicted in drug distribution cases in March 2009 and February 2013. He also was convicted in March 2011 of aggravated assault for pointing a firearm at another person and received an 18-month prison sentence. As a juvenile, Bruce was adjudicated delinquent for assault in 2006.

McClinton was serving a two-year probationary term at the time of his death. He was charged in October 2012 with resisting arrest and other offenses when he allegedly ran out of his former Lindenwold apartment while handcuffed after a juvenile parole officer found narcotics and bullets in the home, police said.

McClinton was the second person killed by a shotgun in Camden this year. Tristan Fulton, 39, was shot in the face with a shotgun Jan. 2 in the 1600 block of Louis Street in the Whitman Park section, authorities said.

Investigators noted shotgun killings aren’t common but declined to say whether the slayings are related.

Hours after McClinton’s slaying, 39-year-old Kenny Moultrie was fatally shot in a home tattoo parlor on the 2100 block of Sewell Street in East Camden. A 12-year-old boy was wounded there but is expected to survive.

Moultrie, a Clementon resident and tattoo artist, was the second person to be killed on that block in recent weeks. Confessor Santiago, a 45-year-old city man, was fatally beaten there Jan. 19. He died 10 days later in a Trenton hospital, and Rasheen Kelly, 32, of Camden is charged with his murder.

Monday’s slayings bring the city’s homicide total to six this year. Camden also had six at this time in 2013.

Reach Andy McNeil at amcneil@gannett.com or (856) 486-2458. Follow him on Twitter @Andy_McNeil.